close #6432
issue #2053

fixes #6471

without a `nav-tabs` or `nav-pills` class a nav is not complete.

http://getbootstrap.com/components/#nav

fixes #6768

Fixes #6398: Added support for specifying dependent component in terms of a configuration array for classes such as `DbCache`

Error: Calling unknown method: yii\apidoc\templates\online\ApiRenderer::typeLink()

fixes #6547
close #6482

Fixes #3665: Improved Gii CRUD generated code to support setting initial conditions via initializing search model

AssetBundle can not be imported because the class already exists in this namespace.

fixes #6475

may happen if yii is installed globally.

fixes #6402

Fixes #5494: Added support for specifying a menu header as a configuration array in `yii\bootstrap\Dropdown`

Fixes #6367: Added `yii\gii\generators\crud\Generator` to support customizing view path for the generated CRUD controller

Fixes #5070: Gii controller generator should use controller class name instead of controller ID to specify new controller

Method clientLink no returns data. In the example of the use of manual output clients in the loop you need to use <?php instead of <?=

including support for optimistic locking (#1313)

fixes #5758